https://github.com/anotherrusty/raydium-pumpfun-smart-contract
pumpfun(pump.fun) smart contract. usafun smart contract based in original pumpfun contract. raydium migration
https://github.com/anotherrusty/raydium-pumpfun-smart-contract
bonding-curve pump-fun rust tokenlaunchpad
Last synced: 3 months ago
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pumpfun(pump.fun) smart contract. usafun smart contract based in original pumpfun contract. raydium migration
- Host: GitHub
- URL: https://github.com/anotherrusty/raydium-pumpfun-smart-contract
- Owner: AnotherRusty
- Created: 2025-01-18T17:23:15.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2025-02-20T17:49:29.000Z (4 months ago)
- Last Synced: 2025-03-28T23:06:42.949Z (3 months ago)
- Topics: bonding-curve, pump-fun, rust, tokenlaunchpad
- Language: TypeScript
- Homepage:
- Size: 347 KB
- Stars: 98
- Watchers: 1
- Forks: 95
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# Pumpfun smart contract fork implementing all main functionalities
This repo gives basic understanding on the pumpfun(pump.fun) smart contracts. To get the full codebase of smart contracts, you can contact me in my profile.
## USAFun(Original pumpfun smart contract forking)
The following video shows how USAFun smart contract works. The USAFun smart contract is built by forking original pumpfun smart contract and adding its own features
## How Works
### 1. Administrative Roles
- Sets initial parameters(usafun config) and whitelist
- Can Modify protocol parameters
- Controls whitelist status
- Fee recipient
### 2. Bonding Curve Mechanism
The protocol implements a constant product bonding curve (x * y = k).
```
TEST_DECIMALS = 6;
TEST_CURVE_LIMIT_LAMPORT = 4_000_000_000;
TEST_VIRTUAL_RESERVES_LAMPORT = 2_000_000_000;
TEST_RESERVE_TOKEN = 950_000_000_000;
TEST_TOKEN_SUPPLY = 1_000_000_000_000;
```
The bonding curve ensures price discovery and continuous liquidity for the token.
### 3. Create a Bonding Curve
- Initialize curve parameters
- Enable whitelist
- Configure initial purchases
### 4. Fee structure
The fee rate is 1%(customizable) and it is taken for all the trades before and after the curve by the admin wallet
### 5. Migration
Migration is a critical process that occurs once the bonding curve has been completed and the tokens are empty.
People buy on the bonding curve and the market cap is growing. Once it reaches a market cap of $100k, the smart contract runs a CPI (Cross-Program Invocation) call to create a Raydium AMM.
## Some Transactions Link
### 1. Created Coin Address:
- https://solscan.io/token/F3VijpV5wpDAcG4LtDjDyoz3DEagRnoMSnVdCPpCUMYg?cluster=devnet
### 2. Bonding Curve:
- https://solscan.io/tx/eQ1bUPFunyQVScsiHsd2Q6ktYf3bTgPkxEGSxBxpsDawnay38MW8w1UPJ37KUnLRqHpQv5i77HN9eRZBLFZL9Lh?cluster=custom&customUrl=https://devnet.helius-rpc.com/?api-key=7387c4ee-fe6a-43a6-96ea-05e6534aa500
### 3. Bonding Curve PDA Address:
- E2eDwJtbiXnnTnD1S3H6ESxCxZS6MamWhv45cB6uKXiX
### 4. Swap Tx
- https://solscan.io/tx/3z9puJ6Jcum1iQ9eA5q6hxoaVAKyKGkFFJuwqBjcrmgrA6xbpiLxwB5GDpD3cD7Wzuo48NViAZKKT9u72N6QSxPS?cluster=devnet
### 5. Bonding Curve Reaching Tx
- https://solscan.io/tx/2QtdKZrhYuwJtWrd7dhja8mnNqZSmR4qbpo9iSLnrhkZADF3zzm8DojYVisvVaiGAkgmoU4ocSyo65EewJkpjvNo?cluster=devnet